{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "70970",
    "entityType": "User",
    "nonce": "0x13d43b2248f72840869339274a2e0b012e4b1ff84bf309c9e37c1046d39047de",
    "signature": "0xac9e21c923a51467c0429f9401e8a09e22073cd1ee2b7b7355c6bf394fdbcaf419df92f640aa19d258c676c1230551bb6da0dd6b69f6baa8eedc3b537fc643301c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}