{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6220",
    "entityType": "User",
    "nonce": "0xc60d0d8d1622cb696080f9e2dc9769c4f348ece6faa9b1595aca98fbc83c4a51",
    "signature": "0xa8707f2a50fc8065281375576f070a7196b5399fe01e57b70aa23d3141428d0e1d8b5f65eb1979426d2015d506169481668dd769f2b0a1900058c753330ed4c41b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}