{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "247949",
    "entityType": "User",
    "nonce": "0x0e496feaa53a53161112b50d77e3d44599f944f299b68557d17de8436d30baaa",
    "signature": "0xefe67c203c25bb5bc298b721d189ef8ab9ff32c01a152cc0d9b4960db4c9e5d2632da1761defd1068e3b2fa5ee6cdc865bfdf0327cf52da255e5af658d2731691b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}