{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381576190",
    "entityType": "User",
    "nonce": "0xce1648d0b5d3d445874bf5ad8c90052e26c520e4b40822ba934372148b672134",
    "signature": "0x35cc130df44bf1a02354a38e009d7e179e47d198deff17869461fa1f5bde773d18dbcc1aa37d974f249eed97874c61a11210729ef1c945ca9e7a90b90a3b48691c",
    "signer": "0xB3ee4c5e6B6470a8720E4491782507CFaABBe5bc",
    "userId": "616543069"
  }
}