{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146154",
    "entityType": "User",
    "nonce": "0x21e95679e495a92865d68819e88b836675f14fec9958b1cd7b31704580334cda",
    "signature": "0xfab48a29443646f5270f65884c38d1a7c25f99322d390560211d2d6fb2ba58b05f98d200bd0b57a80a3f7deaa27203ff53eb75115cb16e4edfeda9070504cc4a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}