{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38451",
    "entityType": "User",
    "nonce": "0xa6149b746c6a00c93b3423de3037ad5f749b022ac3db3528cb8751dc5bd23d86",
    "signature": "0x10b3a5675eb90763d1e362f249c80f8e9d0c6c16ad6e8c994acb77133a03e9cc130088f76d00eb1e8f8eeb49cb20c5d7f41c8be7a59bd22ba0fbb3d487b6b6e31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}