{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x03b66a334b86483d265c6b3a56b99eb57561eca7b1ebee470bfbe764c9ef8d72",
    "signature": "0x7a587bd6b2ea28b596575829e358ef4dc03b622e74a4fe097ac8723f374109603f2f9fcbc1653cbd7de81c05603c6bae5d61408abef5a6963419518e2298073f1c",
    "signer": "0x65fE0Ba212131b9f06d4B7f9edE5c43BC4527fC6",
    "userId": "915972604"
  }
}