{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd307b94b0bef0ec5fe1093eda011a312eff477a734b469600d03064c87de6ad",
    "signature": "0xc633000702319af689ed7efc88b84674da94c0ab2c29f1201faef07be13338ba6ff7eca9d8fb8aba25653ca1fc7c24e5a8a7026fc89f175bb5ed7a11dccea0531c",
    "signer": "0x1a47C7d8B50Bd98d6C210c368b649Fc3a6893ea8",
    "userId": "598973143"
  }
}