{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8d206d105274b32c2b13806f23d6bbd2c958683e4be041c1bf76be014f3fdc70",
    "signature": "0xa91a70bb72ba6ec4254b4736e582de20268f17ae7b6e6e39cc88fd6fe25983d97c56576ba34eb67c5565c305b753bfa40384f9a402710cc12b531c3533ace3aa1b",
    "signer": "0x6C41A524931Dc318D12E67d926beF3012fd8C4f1",
    "userId": "479295724"
  }
}