{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141667420",
    "entityType": "User",
    "nonce": "0xbc610e2cbfdda73c3854ce8931d0289b7d08b7dffb9760658156223e5e5a08ee",
    "signature": "0x7d7fa951daf20aaa68603692b0e7c49d264f7a835a352920593bfba65fec99ea0b3226a9bc09d37ca1ab7f9faebbae6442c4e0de78e53d177ff3a73809296e131c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}