{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "490478463",
    "entityType": "User",
    "nonce": "0xdda6611a5c29ca97b2e5515939e6f5310dd027196b634addc128f1ff323f9104",
    "signature": "0xbed409afb3b176a93aa6214acdc60390e488431bdf7a17b972adcbb176d54f65181c6e9575048418c273b3ca5e3617c8dff7e574969d8360bdee02ec47d402281c",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}