{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "652791136",
    "entityType": "User",
    "nonce": "0x7cbe68d144e3b43540bd53fb16c75df52ec0097f0d4a2d8bac37ccf7c06f6232",
    "signature": "0x1dfaa33e54a4b860560c6b73a7df7386439aaa454ea1a0b2745417c267e8d185215b6d7b19097bb5707cf49ed7677c841e153650f608f702b1955fd4093f16491b",
    "signer": "0xe25AE96B8dB8bd5CF1f8cD812990b5B1a48Be532",
    "userId": "138130947"
  }
}