{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136394",
    "entityType": "User",
    "nonce": "0x606c1a5eb2160c7a026b1de4a4a366033e8a209f5b2f8a2fac3451d1e2dc9c7e",
    "signature": "0x5877000a6cb9de893425486ebc07515db9b41b9bf114ff0382a7dd8e277915e72be0dd410cc56d9bed920262cb7825ee44eeb884571515008ef7b1a5049eb8e61b",
    "signer": "0x18e80443A33c763307bac21D4Ec54B381DFC58cA",
    "userId": "964025330"
  }
}