{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225838",
    "entityType": "User",
    "nonce": "0x477675193dfa9c8e36f95392454eae5df5619997909ce6fc63b310ebdce732f4",
    "signature": "0xc7163a35444dc14557802c8918295195d0bda3f4192fb10649e0f9ed5bae14061a2baec05a63af3722b061c39d69b0fe16ee0da653ecc21216f06d9d02d7e14e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}