{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x47b55dcf4d6542775da6f8f2f798011292b0a0d26d509b250a14ae14254cf2cf",
    "signature": "0xf5404cf72c373508187bba871f6af04e19e5343f747b0cfa9b5023338c66dcec2d37262fd8720a18892a2e792514b8f06f8347bc7eb6ba8f82fb6b70b01926a01b",
    "signer": "0x2a5b15029f304A82df9aF6a3fA0851a5b8525800",
    "userId": "331206081"
  }
}