{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x62c8afa7d70d0fe649577260a0d2d9a686ebec16a0d6fa1616a7a3b9f115f6c3",
    "signature": "0xb4d2dd94f50b09968a24135a71419b0f9c44c6c2d78ed3952bebf7bb377aa2f43b6b3d0841e108280f3b8f58113af08402c2ffa6e3dfeda42a9a685c135d48a71b",
    "signer": "0x2427C439f86D890EAbbB4C47cb8df46B599E6246",
    "userId": "759935059"
  }
}