{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc5165a0352ebb3c182bee653dc40282e3037c321dcd5d3feec700fd7cbd1f0e5",
    "signature": "0x38e9991af7b590691419fe660798176a1cdea80271ab4ac848e930a8e5a42b463edc6867b4eca2733072a00d48de77c21cf367521321808b3aabfb31a02e76811c",
    "signer": "0xd8a65dC2d71D6caDA0ef13A84908F90052c425DA",
    "userId": "837557269"
  }
}