{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "891901255",
    "entityType": "User",
    "nonce": "0x6572b3bd287c906d56952e7e9580808b94da39b28557067b39a79f0054f282f2",
    "signature": "0x3e795ba9a1ee52639bee93c47d4bf3ac3e458a9c480342ca52e7e9997bff47062c001d128305607d4e4d53b22f642152f7fd6f83f11d7fa2036646a42fc67abd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}