{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28d60350e9e7c7af2a06ae660cd26b400951da3d6ae80e19854f531085443cf4",
    "signature": "0x4ff4789ac95acd1862c1641441051720c6d54ba693ce25ce6b9fdb48f325a14b3077f081f2cb65de0c0374d22d3f1ee7aefb0d0b0b5c27e96dcfec12b05014b31b",
    "signer": "0xDF854f9244804645E46700d9756AbE9Df9e4f619",
    "userId": "332331582"
  }
}