{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275858",
    "entityType": "User",
    "nonce": "0x894de6544020653d6373ad8ce3bbcf7ba0b3e9d9d918304263caab035d8ba6c2",
    "signature": "0x5879c388410b9f3a8973cb8ca77d03b5d2a267375dbac8e55adf877d515c860047202eed88fd7c6972c3c3d938ade0e1e2a3397d1b1daadf03611fd28633b65f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}