{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230157",
    "entityType": "User",
    "nonce": "0x9905b2446ceed5a0592766ffdad2a29a58b441b08a8a3a7cda5eec78ed53bf8a",
    "signature": "0x3abcecfa3758779ac2fd6d8d03dcd1693cdd87cf5004ca23d989a371e8a8ef394e0cd744dcd24446dd8132d6e1efe31e0c7de3d82d74c6adf136d3247faafac61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}