{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0xe38a3c78aa40b35f7521d5a04447e531fc89f92c30064fef5191bbdb6e72099b",
    "signature": "0x82cf3d0619642b900c39d132fc760c7514a80e12bd30642dac068cc9309e85ac73ade111131ef5926fba75bd9a7e7501bc8ddfff7e5b04a31500ffd7048352bb1b",
    "signer": "0x9d291c3d255b974fe494F9679cb470BC6Ec7CA05",
    "userId": "905328931"
  }
}