{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18241",
    "entityType": "User",
    "nonce": "0x315fb89acadb548c33512de0fcc2491f823d08e4647cadd75759eace2870864a",
    "signature": "0x555b2ac406c498bf1628e429ce3e203002e18da8cad12c432f6b167a73c5b5f60240b66b0c347d8d36a110224d28f635b5f69c8c586954bea89a02bf991898501b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}