{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208551",
    "entityType": "User",
    "nonce": "0xfe37ed30327aa2a5c254569b3f0b7a739b6ef7a639de4b93b4f89035473256cf",
    "signature": "0xaa38e695f43f376a4b251a54f5d80591686306451e25d95e0d0b8812b4c7b97450ec119e6077f0dd2e74d57bb38a9c3c9255c9f424a8203f945c4351b84a48361c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}