{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987974477",
    "entityType": "User",
    "nonce": "0x6d1b755d6764039ab5f0644b408fc9da56552608be6295b83ab0e351a23946bd",
    "signature": "0x1650340d31d8eb5ad9979dbedaffd23fafaa26bf3a0455dabd96e22d2fd8f5014e11dde74f4bdd0dc2cc28b7a62fc7896ed2b16afab1eece09c2a54f782dfafb1b",
    "signer": "0xD43e7f8e4A99645292672De10799Ee9eCb46b008",
    "userId": "1795"
  }
}