{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc7d0e10d92c0a83967ceecd168ed53249b00cdfdd7e54f80f86059345fef6a1",
    "signature": "0x23cef64839f15abc4cbecd8e6064db38baebceead960e844655463703350ba886117022d02b3bece441cd6e2b7244e2e077bdbe54e178c9218682165968bc5ec1c",
    "signer": "0xCFa936e48986529856De5845C272EDb89839b5d5",
    "userId": "900195610"
  }
}