{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "122823",
    "entityType": "User",
    "nonce": "0xde9945236e1ef0cd6a492a90a943602245de9b5a3c2909819a83e88602dcada3",
    "signature": "0x67e1eaa397852ef1028b6d8a73d3a50d7cf4bbccf9f8e5b7ba10bfffca0d6a66308bb05fef02a84e5e443ff376775d52dc008f5b42209111e8b126aa6204c1121b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}