{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212429",
    "entityType": "User",
    "nonce": "0x234c90538b2b582d8296bf8444290a678b7f89cd2edd3be01934e90b2f86deaa",
    "signature": "0x46b31ac5bd32c58c6744a02813b371aa45f2ad966f9f97ebc2ef5135cd6561ac78a5f6528a883b3d05b5cd2032b19b46e1caa4d530ab419d1522d28cf6d6edd31b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}