{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5557d77bb0b8fe2ebc187bcf64849a38241214085d1be25f318ff0c65684e86e",
    "signature": "0x8db160b37c0ced765525d7211f762dca2767bc062f660dc6d4ea5ed4ab389a9161e0dc6d6f9f2494dfa6152fab57941a38e93cd7e352d2db296e27bfcb426f4d1b",
    "signer": "0xBD2008Ef8E52bC85F03E542bA6c5Cdd1d1B62a81",
    "userId": "573191627"
  }
}