{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702872",
    "entityType": "User",
    "nonce": "0x794f3e435b7b3c1506a6f4de24c2c4738e025748e8f4704d37b8978f25c6f4c6",
    "signature": "0x143e42e33a21bb43be5ad535db8a80325c502217ea7aea69dd7124f815bf27772fc6e5a9ba7a0fb22f9fba78c7b7accbf2617552175578c097bce301b074efb51c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}