{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0x7b8d799ab3185ec9c9e3b572e4f69c104ee8914cf4647efb911c66f0443f48a1",
    "signature": "0x5e03eda16652c7da5ea73827157d06cc3c8211b9f2b3dc9ee28433c924e71c8e757127441aac3dfd848518e5e58c0b93b0fc7b00596ab05308e8c9571f654af41b",
    "signer": "0x720537125Aa4b451266209E0d508D7576a4bAF94",
    "userId": "942771296"
  }
}