{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xbdaf0216457f6c3de3ed0dff7899541073b47d553617bc299bc83d869d52c3e1",
    "signature": "0xff69edb7ed188387101452a29f5daa3ad8124c10aea61a0b08aa497cd27e4d74271d17335c83411a897718cf5fe726a53039ce63f022a1ba0df3ffdc8cc2125e1b",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}