{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1707535",
    "entityType": "User",
    "nonce": "0xc59a3d6fb71110015952f14c359f6f077e4075dfa1e9d98f6fcffb2cabfc8492",
    "signature": "0x4430ec2f4de409d02f34a31c505f5a82dccf4a96ce636b0ec85c2b6aedc065a441d0b0902d147a63c903c9cd2148f216c337808a9c2251269d342c5874993af91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}