{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50737590",
    "entityType": "User",
    "nonce": "0x94efcfc801a3f0f3f7e7f0806ba1953675b3cb4d22c5a10b78dec7a2b63433a5",
    "signature": "0xb23c3091f710942e38b4fa575a22862c94f5c522f2ad79bbd756345bd8af4672747cb14736415f392252763e7c2867f861096ebcea39f7edb5c03949f16d43121c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}