{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "287028",
    "entityType": "User",
    "nonce": "0x20eca70ac2d549c97a4cf88d44a19af57e845db7c704ae90eac4e708cd2c271b",
    "signature": "0x1fbcca52e0f89e66c553c3a57d2a7d658821274d153943e123bdb2d6b0c99e9237fa6ac5b5e71c8fb4c648d737e55c410690af20a835aaa8cd568aa3b74ec1de1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}