{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca795727f9aceb51c601c11e687d2a833e957d90d770396a9280c9dd585bf4b7",
    "signature": "0x318e0b85661ea691fb3220f001bee898542a4316aa4e2d68ae3d385b3421e718501b7d05a8863fce717dc2a346429187bfeb2df41bd39657c08b0a2f0df660af1c",
    "signer": "0x9740514a5C4C271dC838C59daa19E338049ffc49",
    "userId": "10756940"
  }
}