{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "940916831",
    "entityType": "User",
    "nonce": "0x57c10ce926f083b4053845eff1f2f8e19731f70a90611e61dff65db39660eecf",
    "signature": "0xea46a0057142e958be26f5071681411e3acba7437118cbcfca047b709d2922cd2b6d9a2989ef058a8c59c87fe802287111435117b4e79545f587182b6c3416fd1b",
    "signer": "0x451d1Fcc610ac6c427d570E73Cb3641Acfa23b6b",
    "userId": "134623867"
  }
}