{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4027bb64db43eab4e2da004eb5249c65b506e831c684e2f965dc863efbfc6f94",
    "signature": "0x2c2a6a32aa091f4ba97ae7d278b20a404444789f5212ca5ffd73353dddf51ca12d63c20d5f8b5609532ece3c1cc5ef531a5ec80464faa1143c1b6f167d55a52e1b",
    "signer": "0x9a63Ebc85E0f359a0248EC5504ea1b93E25899Df",
    "userId": "115872461"
  }
}