{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0x09346756ca51722f62232b156d650048e4bb9f6529a07387eb6dfd9db5c5173f",
    "signature": "0x4502d09fbbc52bdf825bcd162e96bd035bb65baedfc4a86f92fe38a44a934e912ca57fbcebdf03d95fd159956f7e19ac49dea1e408831f5b81326b82094aa2a71c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}