{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89abacadfa1f8fd8339a1bf7dd29e5dae7866390c909c4716305c19aae9ea9b1",
    "signature": "0x006eea9d0768457a86f62c0c735ad91827ca70b0bd06ac38938d17e108ed0f9e73a2da56cb924edd358ed7a82000a2a50642423de30ee4c8cda777b1aa51f1fb1b",
    "signer": "0xD1479674009678d00F94Ab9E036F8698794aC995",
    "userId": "60487304"
  }
}