{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b7ca7499bf88bade6b1cbcdfd4095c40090990f83bc7843e5a17fc98df15150",
    "signature": "0x548e244724fd4fd263d7fea825f209e7df9cc9e886412eab5094bd66061d0cb01c660e3e356c7c027d23950ae935fc3b29cd182642d77f18d4a008832a2bb5bd1b",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}